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Construction of a Magnetic Bottle Electron Spectrometer for Electron Energy Measurement in BISER X-Rays and Xe Interaction

Hikari OHIRO, Alexander S. PIROZHKOV¹⁾, Koichi OGURA¹⁾, Akito SAGISAKA¹⁾, Tatiana A. PIKUZ^2,3), Kai HUANG¹⁾, Masaki KANDO¹⁾, Kotaro YAMASAKI and Shinichi NAMBA

Department of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-hiroshima, Hiroshima 739-8527, Japan

1)

Kansai Photon Science Institute, National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan

2)

Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan

3)

Joint Institute for High Temperatures of the Russian Academy of Science, Izhorskaja Street 13/19, Moscow 127412, Russia

(Received 9 January 2022 / Accepted 14 February 2022 / Published 8 April 2022)

Abstract

Quantum science and technology Kansai group has found new harmonics X-ray radiation from the relativistic laser-produced plasma, burst intensification by singularity emitting radiation (BISER). As a next step, the BISER pulse width is one of the unclear parameters, and its measurement is essential for applications of BISER to scientific and engineering fields. Therefore, we designed and constructed a magnetic bottle time-of-flight electron spectrometer to characterize the BISER pulse width using a pump-probe method (attosecond streaking). The spectrometer configuration was determined through numerical calculations to obtain a high-energy resolution of approximately 0.2 eV. The electron spectra of the xenon atom irradiated with the BISER X-rays were measured to verify the performance. Consequently, we successfully measured 8.26-eV Auger spectra associated with 4d inner-shell electrons in the test experiment. We demonstrate the experimental results and discuss the signal-to-noise ratio affected by electromagnetic noise generated by the relativistic plasma.

Copyright (c) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

BISER, pump-probe method, magnetic bottle time-of-flight electron spectrometer, mirror magnetic field, Auger electron

DOI: 10.1585/pfr.17.2406020

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